The storm devastated families and communities, but for some, the most memorable part is how many strangers showed up to lend a hand.

In Louisiana, heat and hurricanes can feel like a generational curse. After two decades, an editor who grew up in the state remembers and reflects on Katrina

New Orleans and the Gulf Coast have rebuilt. But the questions Katrina raised in 2005 on climate, government and race persist.

Convoy of Hope, which has now responded to more than 800 emergencies globally, had responded to fewer than 100 disasters when Hurricane Katrina hit.

A weak Hurricane Katrina already had hopscotched Florida’s southeast coast and waded into a very warm Gulf. Now, it was swirling. Seething. Swelling until it stretched from Florida’s Panhandle bend to the Louisiana-Texas line.

Hurricane Katrina was a major storm when it made landfall in New Orleans in August 2005. It claimed more than 1,400 lives, destroyed entire neighborhoods and caused $151 billion in damage.

Qaddoura still gets emotional about the disaster that took nearly everything from him. But it also gave him a new purpose in life: public service.

For many New Orleanians who stayed and became Houstonians, the Dome is more than a building. It’s a sacred place.

ABC's Robin Roberts revisits New Orleans 20 years after the destruction of Hurricane Katrina for a news special on rebuilding after the storm.

Peoria native Danny Grieves won an Illinois state championship as a coach at Metamora. Two decades ago, he and his family survived Hurricane Katrina.